Door blocking device

ABSTRACT

The present invention relates to an arrangement for a door intended, in conjunction with the closing of same, to prevent injury by crushing between the door leaf (4) and the case (2). The arrangement (1) comprises a body component (5) with a plane surface (7) intended to be mounted against the door leaf (4). A longitudinal locking component (6) is pivotally mounted in the body component (5). A spring (9) acts between the aforementioned body and locking components (5, 6), which have devices which define a relative angular position. This means essentially that the direction of longitudinal extension of the locking component (6) forms a normal to the plane surface (7) of the body component (5). The spring (9) forces the components (5, 6) to adopt the aforementioned angular position. The body component (5) with the locking component (6) mounted in it is intended to be mounted on the inside of the door leaf (4) in a position such that, as the door is opened from a closed position, the locking component (6), sliding against the door case (2) along its length, finally leaves the case and freely adopts the aforementioned relative angular position. When the door is closed again, the free end of the locking component (6) will come up against the case (2), thus preventing the door from being fully closed.

BACKGROUND OF THE INVENTION

The present invention relates to an arrangement for a door intended, inconjunction with the closing of same, to prevent injury by crushingbetween the door leaf and the case, comprising a body component with aplane surface intended to be mounted against the door leaf, in whichbody component a longitudinal blocking component is pivotally mounted.

A large number of such injuries by crushing occurs every year, mainly tothe hands and fingers in conjunction with playing with doors or as aresult of doors blowing shut in cross-draughts, etc. Not only areinjuries by crushing extremely painful, but they can also causedisfigurement for life.

SUMMARY OF THE INVENTION

The object of the present invention is to make available an arrangementwhich automatically eliminates injury by crushing around all the edgesof the door, the manner in which this is achieved being characterized inthat the aforementioned body and blocking components have means whichdefine a relative angular position essentially involving the directionof longitudinal extension of the blocking component forming a normal tothe plane surface of the body component, which angular position thecomponents are forced to adopt by a spring acting between said body, andblocking components in conjunction with which the body component withthe blocking component mounted in it is intended to be mounted on theinside of the door leaf in a position such that, as the door is openedfrom a closed position, the blocking component, sliding against the doorcase along its length, finally leaves the case and freely adopts theaforementioned relative angular position in which, when the door isclosed again, the free end of the blocking component will come upagainst the case and will thus prevent the door from being fully closedand that the arrangement comprises a buffer element intended to beapplied to the door case at the point at which the free and of theblocking component is expected to come up against the case, which bufferelement exhibits a concave, curved surface for the aforementioned freeend of the blocking component. By means of the buffer element isachieved a relatively gentle arresting of the movement of the doortowards its closed position on the one hand, and on the other hand noimpact marks are produced on the door case when the free end of theblocking components makes contact with the case.

In accordance with one particular characteristic feature of theinvention, the arrangement comprises a buffer element intended to beapplied to the door case at a point at which the free end of theblocking component is expected to come up against the case, which bymeans of the buffer element is achieved a relatively gentle arresting ofthe movement of the door towards its closed position on the one hand,and on the other hand no impact marks are produced on the door case whenthe free end of the blocking components makes contact with the case.

In accordance with a particular characteristic feature of the invention,the arrangement comprises a snap-action device acting between theaforementioned components and so arranged, against the action of thespring, as to retain the blocking component in a detachable fashion,preferably so that the direction of longitudinal extension of theblocking components is approximately parallel with the plane surface ofthe body component. With the help of this snap-action device it ispossible, for example, for grandparents to set the arrangement tofunction only when the grandchildren are visiting.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention is described below in more detail with reference to theaccompanying drawing, which illustrates in plan view from above thefunction of an arrangement in accordance with the invention during thefollowing phases: door closed, FIG. 1; door prevented from being closed,FIG. 2; and arrangement in the inactive position, FIG. 3.

DESCRIPTION OF THE PREFERRED EMBODIMENT

The designation 1 is used in the drawing generally in respect of anarrangement in accordance with the invention, which is referred to belowas an anti-crushing guard, and the designation 2 is used in respect of adoor case with a hinge 3, which supports a door leaf 4.

The anti-crushing guard 1 comprises a body component 5 and alongitudinal blocking component 6 pivotally mounted therein. The bodycomponent 5 has a plane surface 7 intended to be mounted on the doorleaf 4. The mounting of the blocking component 6 in the body component 5is constituted by a pin 8.

The body and blocking components 5 and 6 are executed with devices 5aand 6a so arranged as to define a relative angular position between thecomponents 5 and 6. The aforementioned devices consist, in theembodiment illustrated in the drawing, of two surfaces, which, in theaforementioned relative position, which essentially means that thelongitudinal extent of the blocking components 6 forms a normal to theplane surface 7 of the body component 5, are constituted by a surface 5aparallel with the plane surface 7 and the end surface 6a of the blockingcomponent 6 situated closest to the mounting. The components 5, 6 arecaused by a spring 9 arranged in conjunction with the mounting betweenthe body and blocking components to adopt the aforementioned relativeposition in which the end surface 6a of the blocking component 6 restsagainst the surface 5a of the body component 5.

The arrangement 1 is intended to be installed with the plane surface 7facing towards the inside of the door leaf 4, at a height above thefloor such that it is out of reach of small children and in a positionrelative to the front edge 10 of the door leaf 4 such that, as the dooris opened, the blocking component 6 will first slide along the door case2 along its length. Once it finally moves out of contact with the case2, the blocking component 6 is caused by the spring 9 to adjust to aposition in which it is approximately perpendicular to the door leaf 4.When the door is closed once more, the free end 11 of the blockingcomponent 6 will come into contact with the case 2 and will thus preventthe door from being fully closed. The risk of injury by crushing iseliminated entirely in this way, not only between the case 2 and thefront edge 10 of the door leaf 4, but also between the case 2 and theedge 12 of the door leaf 4 facing towards the hinge 3. In order toprevent damage to the case 2 at the point at which the free end of theblocking component 6 is expected to come into contact with the case 2, abuffer element 13 with a concave, curved contact surface 14 for the freeend 11 of the blocking component 6 is fitted at the point; see inparticular FIG. 2. The concave, curved surface 14 serves the purpose ofrendering the braking of the door more gentle.

By means of a snap-action device acting between the body and blockingcomponents 5, 6, which device is preferably arranged in the mountingbetween the aforementioned components, the blocking component 6 isretained against the effect of the spring 9 in an inactive position (seeFIG. 3) in which the direction of longitudinal extension of the blockingcomponent 6 is approximately parallel with the door leaf 4. Ifnecessary, the blocking component 6 can be released so as to act in themanner described above.

What is claimed is:
 1. Arrangement for a door intended, in conjunctionwith the closing of same, to prevent injury by crushing between the doorleaf and the case, comprising a body component with a plane surfaceintended to be mounted against the door leaf, in which body component alongitudinal blocking component is pivotally mounted, characterized inthat the aforementioned body and blocking components have means whichdefine a relative angular position essentially involving the directionof longitudinal extension of the blocking component forming a normal tothe plane surface of the body component, which angular position thecomponents are forced to adopt by a spring, acting between said body andblocking components in conjunction with which the body component withthe blocking component mounted in it is intended to be mounted on theinside of the door leaf in a position such that, as the door is openedfrom a closed position, the blocking component, sliding against theinside of the door case along its length, finally leaves the case andfreely adopts the aforementioned relative angular position in which,when the door is closed again, the free end of the blocking componentwill come up against the front of the case and will thus prevent thedoor from being fully closed and that the arrangement comprises a bufferelement intended to be applied to the front of the door case at thepoint at which the free end of the blocking component is expected tocome up against the front of the case, which buffer element exhibits aconcave, curved contact surface for the aforementioned free end of theblocking component.
 2. Arrangement according to patent claim 1,characterized in that the arrangement comprises a snap-action deviceacting between the aforementioned components and so arranged, againstthe action of the spring, as to retain the blocking component in adetachable fashion in an inactive position, preferably so that thedirection of longitudinal extension of the blocking component isapproximately parallel with the plane surface of the body component.